ABSTRACT
Objective To observe the efficacy of Huoxue Tongmai decoction in the treatment of coronary heart disease with angina pectoris.Methods 60 coronary heart disease patients with angina pectoris were randomly divided into two groups,30 cases in each group.The observation group was treated with Huoxue Tongmai decoction concomitant with routine chemical medicine therapy,and the control group was treated with only routine chemical medicine therapy.The total effective rate,reduced angina occurrences after therapy and ECG were observed in both two groups.Results After treatment,the total effective rate of the observation group was 93.3%,which was signifi-cantly higher than that of the control group(χ2 =4.32,P <0.05).Compared with the two groups of ECG efficacy,the total effective rate of the observation group was 83.3%,which was significantly higher than 66.7% of the control group (χ2 =4.22,P <0.05).After one,three treatment courses,the number of angina attack in the observation group was significantly lower than that in the control group,and the differences were statistically significant(t =6.99, 10.82,all P <0.05).Conclusion Houxue Tongmai decoction combined with routine chemistry medicine is more effective than routine chemistry medicine in treating angina.
ABSTRACT
Objective Calcification and graft failure may occur in aortic valved homografting as a result of immune rejection. This study was designed to examine the effects of immunosuppression in reducing immune rejection response and preventing calcification in rat aortic valved homograft(AVH). Methods Animals were randomly assigned into 3 test groups and 1 control group. SD-Wistar rats in the test groups received AVH of cryopreservation (group A), received AVH of cryopreservation followed by CsA treatment (group B), and received AVH preconditioned with monoclonal antibody against dendritic cells (DcmAb) diluted in 1:5 and cryopreserved then were treated with DcmAb postoperatively (group C), respectively. Rats in the control group(group D) were Wistar→Wistar.Rat AVH with myocardial cuff were transplanted into the abdominal aorta of rats. The rats were sacrificed in batchs at 2, 4, 8, 12 and 16 weeks postoperatively. Blood samples were obzained for detecting the expression of TCR-αβ, CD28. The AVH specimens were obtained for observing the change of endotheliocyte and smooth muscle cells with light and electron microscopes. At the same time, calcium contents of AVH tissues after transplantation were measured. Results As compared with the control group, the expression of TCR-αβ and CD28 in test groups was increased significantly at each time point(P<0.01) and reached peaks 2 to 4 weeks after operation, then gradually reduced and was closed to the level of controls at 12 weeks. Calcium contents of AVH tissues in the test groups was increased gradually since 4 weeks and reached the peak 12 to 16 weeks after operation. No significant difference in calcium level was found in the control group over 5 different periods (P>0.05). Calcium contents of AVH tissues at 4 and 8 weeks postoperatively were (2856±79)μg/g and (3587±168)μg/g in the groups with cryopreservation;(2518±73)μg/g,(3237±187)μg/g in the CsA treatment group;(2176±210)μg/g, (3089±176)μg/g in the DCmAb treatment group; (860±60) μg/g, (870±50) μg/gin the control group. Conclusion The immunosuppressive treatment had substantial effects on AVH calcification as a result of reduction in immune rejection response and delay in the development of calcification.
ABSTRACT
Objectives:To study the pathological behavior and the value of transforming growth factor β1(TGF-β1) in predicting prognosis in pulmonary hypertension associated with congenital heart disease. Methods:Lung tissues from 29 patients with congenital heart diseases associated with pulmonary hypertension were examined by surgical biopsy of the lung. All samples were examined for the expression and localization of TGF-β1 by immunohistochemical technique with anti-TGF-β1 antibody. Results:Twenty-six out of 29 showed positive staining of intracellular endotheliocyte TGF-β1(89.65%),16 samples showed extracellular matrix TGF-β1 staining(55.17%).Statistically, there was significant difference between Ⅰ～Ⅱ and Ⅲ～Ⅵ pathological degrees in extracellular matrix(P<0.05). Conclusions: TGF-β1 plays an important biological role in the formation of pulmonary hypertension after congenital heart disease. It is conductive in predicting prognosis.